AFRISO RF EX Serie Bedienungsanleitung Seite 56

4.1.3 Measuring principle diaphragm pressure gauge
4.2 Approvals, conformities, certifications
The Bourdon tube pressure gauge complies with:
• Pressure gauges (EN 837-1)
The products capsule pressure gauge and diaphragm pressure gauge com-
ply with:
• Pressure gauges (EN 837-3)
Products with a range > 500 mbar comply with the Pressure Equipment
Directive (2014/68/EU). The products comply with the ATEX directive
2014/34/EU.
The product Bourdon tube pressure gauge with clamp chemical seal also
complies with the US 3-A Sanitary Standard 74-06.
Product description
Diaphragm pressure gauges use cir-
cular corrugated diaphragms. The
pressure to be measured is applied
at one side. The deflection of the dia-
phragm is proportional to the pres-
sure.
RF ... EX / KP ... EX / PF ... EX
EN
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